Draft: No AllCalo container in HImode

In HImode, this MR prevents saving AllCalo container and saves SubtractedCells instead. This is done through a new flag Calo.Cell.Write that is True by default. Optionally, one can save both AllCalo and SubtractedCells containers, although this option is disabled now.
For all other cases, particularly in an ordinary pp reconstruction, the behaviour is unchanged and AllCalo container is saved.

Tagging @stapiaar